Deutsches Ozeanographisches
Datenzentrum Inventur der Sonne1-Reise 121 (DOD-Ref-No.20000115)
Inventory of Sonne1 Cruise 121 (DOD-Ref-No.20000115)

Plattform
Platform
Reise-Nr.
Cruise-No.
Zeitraum
Period
Projekt
Project
Arbeitsgebiet
Working area
Sonne1 121 14.07.1997 - 05.08.1997   Red Sea Arabian Sea  

Fahrtleiter
Chief Scientist
Institut
Institute
Auslaufhafen
Port of departure
Einlaufhafen
Port of return
Stationskarte
Station map
Schiffsroute
Trackchart
Stoffers Peter Institut fur Geowissenschaften - Abteilung Geologie Unknown Unknown   

Ziel der Reise / Objectives of Cruise:

The hydrographic investigations emphasized the following points of interest: 1.Changes of the salinity and temperature structure of the high saline brine fillings in several depressions in the Red Sea compared to the results found during former expeditions. Variations of the interface depth positions. as well as temporal changes of temperature and salinity should indicate changes in intensity of brine supply and hydrothermal activities. This was of special interest as the investigations two years ago suggested an unusual strong increase of the hydrothermal activity in the Atlantis I1 Deep area. Analysing the fine structure of the temperature and salinity profiles especially at the lower brine surface of the Atlantis 11 Deep may help to localise the approximate locations of brine supply. Using the total volume of the Atlantis 1I Deep depression up to its uppermost mixing boundary with normal Red Sea water (at about 1910 m water depth), its total satt content and heat capacity and its changes with time we hope to get a more realistic estimation of the total rates of supply and loss of high saline solution and heat. 2. Taking water Samples from all major brine sections and sampling of the boundaries between homogeneous brine sections in high depth resolution to follow diffusive mixing as well as precipitation/redissolution processes.

Messungen / Measurements

Institut
Institute
Wissenschaftler
Scientist
Anzahl
Number
Einheit
Unit
Typ der Messungen
Type of measurements
Kommentar
Comments
Daten im DOD
Data in DOD
INSGEK Stoffers Peter 15 cores G03
Core-rock (no. of cores)
box-corer no
INSGEK Stoffers Peter 29 cores G04
Core-soft bottom (no. of cores)
20 multi-cores and 9 piston-cores no
INSGEK Stoffers Peter 3370 km G74
Multi-beam echosounding
- no
INSGEK Stoffers Peter 44 stations H10
CTD-Stations
- no
INSGEK Stoffers Peter 15 stations H74
Carbon dioxide
- no
12.10.2019